Hello!

I'm 17 weeks pregnant and over the last two days I've had these symptoms on and off quite strongly. Pre-pregnancy I occasionally had low blood pressure dips which caused almost fainting and sometimes actual fainting. My last OB check up was last week and my glucose, protein levels etc were fine. My blood pressure was 101 which is a tad low but still normal. This feeling I've been getting is horrible, like I might faint and vomit simultaneously and I always yawn HEAPS and become instantly tired. I also sometimes get a sense that I am going to have bowel movement but have not actually had the runs or 'had' to go. This can all last an hour or more at a time. Is it normal?